import sys

input = sys.stdin.readline

n = int(input())

print(8 - int((n - 400) / 200)) import sys sys input = sys.stdin.readline input sys.stdin.readline sys.stdin sys stdin readline n = int(input()) n int(input()) int input() input print(8 - int((n - 400) / 200)) print 8 - int((n - 400) / 200) 8 int((n - 400) / 200) int (n - 400) / 200 n - 400 n 400 200 input = sys.stdin.readline sys.stdin.readline input n = int(input()) int(input()) n
import sys

input = sys.stdin.readline

n = int(input())

print(8 - int((n - 400) / 200))
